Harm to health. Lithium battery factory has a lot of battery radiation. In fact, lithium batteries contain electrolyte solution, which is very harmful to people. The minimum living distance is 6 kilometers. BYD was founded in 1995, with about 220,000 employees. It has more than 30 industrial parks around the world, covering an area of more than180,000 square meters, and its business scope has expanded from the initial rechargeable batteries to today's cars.